++changelog

With current pip (23.1.2) and setuptools (67.7.2) versions, installation
from Git was failing with "Invalid version: '7.0.0-17-ge57cf1e7'"
message. The issue can be reproduced by running the following command
with the latest pip and setuptools installed:

  $ pip install git+https://code.ungleich.ch/ungleich-public/cdist.git@e57cf1e70a3818180b3f54e1e0364ff3b6bbd9cc#egg=cdist

Reviewed-on: #366
Co-authored-by: Ľubomír Kučera <lubomir.kucera.jr@gmail.com>
Co-committed-by: Ľubomír Kučera <lubomir.kucera.jr@gmail.com>

Makefile

@@ -35,9 +35,9 @@ DOCS_SRC_DIR=./docs/src
 SPEECHDIR=./docs/speeches
 TYPEDIR=./cdist/conf/type
 
-SPHINXM=make -C $(DOCS_SRC_DIR) man
-SPHINXH=make -C $(DOCS_SRC_DIR) html
-SPHINXC=make -C $(DOCS_SRC_DIR) clean
+SPHINXM=$(MAKE) -C $(DOCS_SRC_DIR) man
+SPHINXH=$(MAKE) -C $(DOCS_SRC_DIR) html
+SPHINXC=$(MAKE) -C $(DOCS_SRC_DIR) clean
 
 ################################################################################
 # Manpages

bin/cdist-build-helper

@@ -1,6 +1,6 @@
 #!/bin/sh
 #
-# 2011-2013 Nico Schottelius (nico-cdist at schottelius.org)
+# 2011-2022 Nico Schottelius (nico-cdist at schottelius.org)
 # 2016-2019 Darko Poljak (darko.poljak at gmail.com)
 #
 # This file is part of cdist.
@@ -534,7 +534,8 @@ eof
     ;;
 
     version)
-        printf "VERSION = \"%s\"\n" "$(git describe)" > cdist/version.py
+        target_version="$(git describe | sed 's/-/.dev/; s/-/+/g')"
+        printf "VERSION = \"%s\"\n" "${target_version}" > cdist/version.py
     ;;
 
     target-version)

cdist/argparse.py

@@ -472,9 +472,6 @@ def get_parsers():
     parser['info'].set_defaults(func=cdist.info.Info.commandline)
 
     # Scan = config + further
-    parser['scan'] = parser['sub'].add_parser('scan', add_help=False,
-                                              parents=[parser['config']])
-
     parser['scan'] = parser['sub'].add_parser(
             'scan', parents=[parser['loglevel'],
                              parser['beta'],
@@ -485,19 +482,31 @@ def get_parsers():
     parser['scan'].add_argument(
         '-m', '--mode', help='Which modes should run',
         action='append', default=[],
-        choices=['scan', 'trigger'])
+        choices=['scan', 'trigger', 'config'])
+    parser['scan'].add_argument(
+        '--list',
+        action='store_true',
+        help='List the known hosts and exit')
     parser['scan'].add_argument(
         '--config',
         action='store_true',
         help='Try to configure detected hosts')
     parser['scan'].add_argument(
-        '-I', '--interfaces',
-        action='append',  default=[],
+        '-I', '--interface',
+        action='append',  default=[], required=True,
         help='On which interfaces to scan/trigger')
     parser['scan'].add_argument(
-        '-d', '--delay',
-        action='store',  default=3600,
-        help='How long to wait before reconfiguring after last try')
+        '--name-mapper',
+        action='store',  default=None,
+        help='Map addresses to names, required for config mode')
+    parser['scan'].add_argument(
+        '-d', '--config-delay',
+        action='store',  default=3600, type=int,
+        help='How long (seconds) to wait before reconfiguring after last try')
+    parser['scan'].add_argument(
+        '-t', '--trigger-delay',
+        action='store',  default=5, type=int,
+        help='How long (seconds) to wait between ICMPv6 echo requests')
     parser['scan'].set_defaults(func=cdist.scan.commandline.commandline)
 
     for p in parser:

cdist/conf/explorer/lsb_codename

@@ -21,6 +21,9 @@
 
 set +e
 case "$("$__explorer/os")" in
+   checkpoint)
+       awk '{printf("%s\n", $(NF-1))}' /etc/cp-release
+   ;;
    openwrt)
       # shellcheck disable=SC1091
       (. /etc/openwrt_release && echo "$DISTRIB_CODENAME")

cdist/conf/explorer/lsb_description

@@ -21,6 +21,9 @@
 
 set +e
 case "$("$__explorer/os")" in
+   checkpoint)
+       cat /etc/cp-release
+   ;;
    openwrt)
       # shellcheck disable=SC1091
       (. /etc/openwrt_release && echo "$DISTRIB_DESCRIPTION")

cdist/conf/explorer/lsb_id

@@ -21,6 +21,9 @@
 
 set +e
 case "$("$__explorer/os")" in
+   checkpoint)
+       echo "CheckPoint"
+   ;;
    openwrt)
       # shellcheck disable=SC1091
       (. /etc/openwrt_release && echo "$DISTRIB_ID")

cdist/conf/explorer/lsb_release

@@ -21,6 +21,9 @@
 
 set +e
 case "$("$__explorer/os")" in
+   checkpoint)
+       sed /etc/cp-release -e 's/.* R\([1-9][0-9]*\)\.[0-9]*$/\1/'
+   ;;
    openwrt)
       # shellcheck disable=SC1091
       (. /etc/openwrt_release && echo "$DISTRIB_RELEASE")

cdist/conf/explorer/memory

@@ -27,19 +27,18 @@
 str2bytes() {
 	awk -F' ' '
 	$2 ==   "B" || !$2 { print $1 }
-	$2 ==  "kB" { print $1 * 1000 }
-	$2 ==  "MB" { print $1 * 1000 * 1000 }
-	$2 ==  "GB" { print $1 * 1000 * 1000 * 1000 }
-	$2 ==  "TB" { print $1 * 1000 * 1000 * 1000 * 1000 }
-	$2 == "kiB" { print $1 * 1024 }
-	$2 == "MiB" { print $1 * 1024 * 1024 }
-	$2 == "GiB" { print $1 * 1024 * 1024 * 1024 }
-	$2 == "TiB" { print $1 * 1024 * 1024 * 1024 * 1024 }'
+	$2 ==  "kB" { printf "%.f\n", ($1 * 1000) }
+	$2 ==  "MB" { printf "%.f\n", ($1 * 1000 * 1000) }
+	$2 ==  "GB" { printf "%.f\n", ($1 * 1000 * 1000 * 1000) }
+	$2 ==  "TB" { printf "%.f\n", ($1 * 1000 * 1000 * 1000 * 1000) }
+	$2 == "kiB" { printf "%.f\n", ($1 * 1024) }
+	$2 == "MiB" { printf "%.f\n", ($1 * 1024 * 1024) }
+	$2 == "GiB" { printf "%.f\n", ($1 * 1024 * 1024 * 1024) }
+	$2 == "TiB" { printf "%.f\n", ($1 * 1024 * 1024 * 1024 * 1024) }'
 }
 
 bytes2kib() {
-	set -- "$(cat)"
-	test "$1" -gt 0 && echo $(($1 / 1024))
+	awk '$0 > 0 { printf "%.f\n", ($0 / 1024) }'
 }
 
 

cdist/conf/explorer/os

@@ -116,6 +116,13 @@ if [ -f /etc/slackware-version ]; then
    exit 0
 fi
 
+# Appliances
+
+if grep -q '^Check Point Gaia' /etc/cp-release 2>/dev/null; then
+    echo checkpoint
+    exit 0
+fi
+
 uname_s="$(uname -s)"
 
 # Assume there is no tr on the client -> do lower case ourselves

cdist/conf/explorer/os_release

@@ -34,5 +34,9 @@ elif test -f /var/run/os-release
 then
 	# FreeBSD (created by os-release service)
 	cat /var/run/os-release
+elif test -f /etc/cp-release
+then
+        # Checkpoint firewall or management (actually linux based)
+        cat /etc/cp-release
 fi
 

cdist/conf/explorer/os_version

@@ -1,6 +1,7 @@
-#!/bin/sh
+#!/bin/sh -e
 #
 # 2010-2011 Nico Schottelius (nico-cdist at schottelius.org)
+# 2020-2021 Dennis Camera (dennis.camera at ssrq-sds-fds.ch)
 #
 # This file is part of cdist.
 #
@@ -17,12 +18,22 @@
 # You should have received a copy of the GNU General Public License
 # along with cdist. If not, see <http://www.gnu.org/licenses/>.
 #
-#
 # All os variables are lower case
 #
-#
 
-case "$("$__explorer/os")" in
+rc_getvar() {
+   awk -F= -v varname="$2" '
+      function unquote(s) {
+         if (s ~ /^".*"$/ || s ~ /^'\''.*'\''$/)
+            return substr(s, 2, length(s) - 2)
+         else
+            return s
+      }
+      $1 == varname { print unquote(substr($0, index($0, "=") + 1)) }' "$1"
+}
+
+case $("${__explorer:?}/os")
+in
    amazon)
       cat /etc/system-release
    ;;
@@ -30,6 +41,9 @@ case "$("$__explorer/os")" in
       # empty, but well...
       cat /etc/arch-release
    ;;
+   checkpoint)
+       awk '{version=$NF; printf("%s\n", substr(version, 2))}' /etc/cp-release
+    ;;
    debian)
       debian_version=$(cat /etc/debian_version)
       case $debian_version
@@ -43,6 +57,8 @@ case "$("$__explorer/os")" in
               # sid versions don't have a number, so we decode by codename:
               case $(expr "$debian_version" : '\([a-z]\{1,\}\)/')
               in
+                  trixie) echo 12.99 ;;
+                  bookworm) echo 11.99 ;;
                   bullseye) echo 10.99 ;;
                   buster) echo 9.99 ;;
                   stretch) echo 8.99 ;;
@@ -50,7 +66,7 @@ case "$("$__explorer/os")" in
                   wheezy) echo 6.99 ;;
                   squeeze) echo 5.99 ;;
                   lenny) echo 4.99 ;;
-                  *) exit 1
+                  *) echo 99.99 ;;
               esac
               ;;
           *)
@@ -59,7 +75,24 @@ case "$("$__explorer/os")" in
       esac
    ;;
    devuan)
-      cat /etc/devuan_version
+      devuan_version=$(cat /etc/devuan_version)
+      case ${devuan_version}
+      in
+         (*/ceres)
+            # ceres versions don't have a number, so we decode by codename:
+            case ${devuan_version}
+            in
+               (daedalus/ceres) echo 4.99 ;;
+               (chimaera/ceres) echo 3.99 ;;
+               (beowulf/ceres) echo 2.99 ;;
+               (ascii/ceres) echo 1.99 ;;
+               (*) exit 1
+            esac
+            ;;
+         (*)
+            echo "${devuan_version}"
+            ;;
+      esac
    ;;
    fedora)
       cat /etc/fedora-release
@@ -68,12 +101,20 @@ case "$("$__explorer/os")" in
       cat /etc/gentoo-release
    ;;
    macosx)
-      sw_vers -productVersion
+      # NOTE: Legacy versions (< 10.3) do not support options
+      sw_vers | awk -F ':[ \t]+' '$1 == "ProductVersion" { print $2 }'
    ;;
    freebsd)
       # Apparently uname -r is not a reliable way to get the patch level.
       # See: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=251743
-      freebsd-version
+      if command -v freebsd-version >/dev/null 2>&1
+      then
+         # get userland version
+         freebsd-version -u
+      else
+         # fallback to kernel release for FreeBSD < 10.0
+         uname -r
+      fi
    ;;
    *bsd|solaris)
       uname -r
@@ -98,7 +139,20 @@ case "$("$__explorer/os")" in
       fi
    ;;
    ubuntu)
-      lsb_release -sr
+      if command -v lsb_release >/dev/null 2>&1
+      then
+         lsb_release -sr
+      elif test -r /usr/lib/os-release
+      then
+         # fallback to /usr/lib/os-release if lsb_release is not present (like
+         # on minimized Ubuntu installations)
+         rc_getvar /usr/lib/os-release VERSION_ID
+      elif test -r /etc/lsb-release
+      then
+         # extract DISTRIB_RELEASE= variable from /etc/lsb-release on old
+         # versions without /usr/lib/os-release.
+         rc_getvar /etc/lsb-release DISTRIB_RELEASE
+      fi
    ;;
    alpine)
        cat /etc/alpine-release

cdist/conf/type/__apt_backports/manifest

@@ -28,6 +28,7 @@
 #  lsb_release may not be given in all installations
 codename_os_release() {
     # shellcheck disable=SC1090
+    # shellcheck disable=SC1091
     . "$__global/explorer/os_release"
     printf "%s" "$VERSION_CODENAME"
 }

cdist/conf/type/__apt_mark/explorer/state

@@ -24,4 +24,4 @@ else
     name="$__object_id"
 fi
 
-apt-mark showhold | grep -Fq "$name" && echo hold || echo unhold
+apt-mark showhold | grep -q "^${name}$" && echo hold || echo unhold

cdist/conf/type/__apt_pin/man.rst

@@ -0,0 +1,79 @@
+cdist-type__apt_pin(7)
+======================
+
+NAME
+----
+cdist-type__apt_pin - Manage apt pinning rules
+
+
+DESCRIPTION
+-----------
+Adds/removes/edits rules to pin some packages to a specific distribution. Useful if using multiple debian repositories at the same time. (Useful, if one wants to use a few specific packages from backports or perhaps Debain testing... or even sid.)
+
+
+REQUIRED PARAMETERS
+-------------------
+distribution
+   Specifies what distribution the package should be pinned to. Accepts both codenames (buster/bullseye/sid) and suite names (stable/testing/...).
+
+
+OPTIONAL PARAMETERS
+-------------------
+package
+   Package name, glob or regular expression to match (multiple) packages. If not specified `__object_id` is used.
+
+priority
+   The priority value to assign to matching packages. Defaults to 500. (To match the default target distro's priority)
+
+state
+   Will be passed to underlying `__file` type; see there for valid values and defaults.
+
+
+
+BOOLEAN PARAMETERS
+------------------
+None.
+
+
+EXAMPLES
+--------
+
+.. code-block:: sh
+
+   # Add the bullseye repo to buster, but do not install any packages by default,
+   # only if explicitely asked for (-1 means "never" for apt)
+    __apt_pin bullseye-default \
+       --package "*" \
+       --distribution bullseye \
+       --priority -1
+
+    require="__apt_pin/bullseye-default" __apt_source bullseye \
+       --uri http://deb.debian.org/debian/ \
+       --distribution bullseye \
+       --component main
+
+    __apt_pin foo --package "foo foo-*" --distribution bullseye
+
+    __foo # Assuming, this installs the `foo` package internally
+
+    __package foo-plugin-extras # Assuming we also need some extra stuff
+
+
+SEE ALSO
+--------
+:strong:`apt_preferences`\ (5)
+:strong:`cdist-type__apt_source`\ (7)
+:strong:`cdist-type__apt_backports`\ (7)
+:strong:`cdist-type__file`\ (7)
+
+AUTHORS
+-------
+Daniel Fancsali <fancsali@gmail.com>
+
+
+COPYING
+-------
+Copyright \(C) 2021 Daniel Fancsali. You can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.

cdist/conf/type/__apt_pin/manifest

@@ -0,0 +1,68 @@
+#!/bin/sh -e
+#
+# 2021 Daniel Fancsali (fancsali@gmail.com)
+#
+# This file is part of cdist.
+#
+# cdist is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# cdist is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with cdist. If not, see <http://www.gnu.org/licenses/>.
+#
+
+
+name="$__object_id"
+
+os=$(cat "$__global/explorer/os")
+state="$(cat "$__object/parameter/state")"
+
+if [ -f "$__object/parameter/package" ]; then
+    package="$(cat "$__object/parameter/package")"
+else
+    package=$name
+fi
+
+distribution="$(cat "$__object/parameter/distribution")"
+priority="$(cat "$__object/parameter/priority")"
+
+
+case "$os" in
+   debian|ubuntu|devuan)
+   ;;
+   *)
+      printf "This type is specific to Debian and it's derivatives" >&2
+      exit 1
+   ;;
+esac
+
+case $distribution in
+    stable|testing|unstable|experimental)
+        pin="release a=$distribution"
+        ;;
+    *)
+        pin="release n=$distribution"
+        ;;
+esac
+
+
+__file "/etc/apt/preferences.d/$name" \
+    --owner root --group root --mode 0644 \
+    --state "$state" \
+    --source - << EOF
+# Created by cdist ${__type##*/}
+# Do not change. Changes will be overwritten.
+#
+
+# $name
+Package: $package
+Pin: $pin
+Pin-Priority: $priority
+EOF

cdist/conf/type/__apt_pin/parameter/default/priority

@@ -0,0 +1 @@
+500

cdist/conf/type/__apt_pin/parameter/default/state

@@ -0,0 +1 @@
+present

cdist/conf/type/__apt_pin/parameter/optional

@@ -0,0 +1,3 @@
+state
+package
+priority

cdist/conf/type/__apt_pin/parameter/required

@@ -0,0 +1 @@
+distribution

cdist/conf/type/__apt_ppa/files/remove-apt-repository

@@ -1,55 +0,0 @@
-#!/usr/bin/env python
-#
-# Remove the given apt repository.
-#
-# Exit with:
-#   0: if it worked
-#   1: if not
-#   2: on other error
-
-import os
-import sys
-from aptsources import distro, sourceslist
-from softwareproperties import ppa
-from softwareproperties.SoftwareProperties import SoftwareProperties
-
-
-def remove_if_empty(file_name):
-    with open(file_name, 'r') as f:
-        if f.read().strip():
-            return
-        os.unlink(file_name)
-
-def remove_repository(repository):
-    #print 'repository:', repository
-    codename = distro.get_distro().codename
-    #print 'codename:', codename
-    (line, file) = ppa.expand_ppa_line(repository.strip(), codename)
-    #print 'line:', line
-    #print 'file:', file
-    deb_source_entry = sourceslist.SourceEntry(line, file)
-    src_source_entry = sourceslist.SourceEntry('deb-src{}'.format(line[3:]), file)
-
-    try:
-        sp = SoftwareProperties()
-        sp.remove_source(deb_source_entry)
-        try:
-            # If there's a deb-src entry, remove that too
-            sp.remove_source(src_source_entry)
-        except:
-            pass
-        remove_if_empty(file)
-        return True
-    except ValueError:
-        print >> sys.stderr, "Error: '%s' doesn't exists in a sourcelist file" % line
-        return False
-
-if __name__ == '__main__':
-    if (len(sys.argv) != 2):
-        print >> sys.stderr, 'Error: need a repository as argument'
-        sys.exit(2)
-    repository = sys.argv[1]
-    if remove_repository(repository):
-        sys.exit(0)
-    else:
-        sys.exit(1)

cdist/conf/type/__apt_ppa/gencode-remote

@@ -29,9 +29,9 @@ fi
 
 case "$state_should" in
    present)
-      echo "add-apt-repository '$name'"
+      echo "add-apt-repository -y '$name'"
    ;;
    absent)
-      echo "remove-apt-repository '$name'"
+      echo "add-apt-repository -r -y '$name'"
    ;;
 esac

cdist/conf/type/__apt_ppa/manifest

@@ -20,9 +20,4 @@
 
 __package software-properties-common
 
-require="__package/software-properties-common" \
-   __file /usr/local/bin/remove-apt-repository \
-   --source "$__type/files/remove-apt-repository" \
-   --mode 0755
-
 require="$__object_name" __apt_update_index

cdist/conf/type/__apt_source/files/source.list.template

@@ -2,13 +2,14 @@
 set -u
 
 entry="$uri $distribution $component"
+
 cat << DONE
 # Created by cdist ${__type##*/}
 # Do not change. Changes will be overwritten.
 #
 
 # $name
-deb ${forcedarch} $entry
+deb ${options} $entry
 DONE
 if [ -f "$__object/parameter/include-src" ]; then
    echo "deb-src $entry"

cdist/conf/type/__apt_source/gencode-remote

@@ -22,7 +22,21 @@
 name="$__object_id"
 destination="/etc/apt/sources.list.d/${name}.list"
 
+# There are special arguments to apt(8) to prevent aborts if apt woudn't been
+# updated after the 19th April 2021 till the bullseye release. The additional
+# arguments acknoledge the happend suite change (the apt(8) update does the
+# same by itself).
+#
+# Using '-o $config' instead of the --allow-releaseinfo-change-* parameter
+# allows backward compatablility to pre-buster Debian versions.
+#
+# See more: ticket #861
+# https://code.ungleich.ch/ungleich-public/cdist/-/issues/861
+apt_opts="-o Acquire::AllowReleaseInfoChange::Suite=true -o Acquire::AllowReleaseInfoChange::Version=true"
+
+# run 'apt-get update' only if something changed with our sources.list file
+#   it will be run a second time on error as a redundancy messure to success
 if grep -q "^__file${destination}" "$__messages_in"; then
-   printf 'apt-get update || apt-get update\n'
+   printf 'apt-get %s update || apt-get %s update\n' "$apt_opts" "$apt_opts"
 fi
 

cdist/conf/type/__apt_source/man.rst

@@ -23,6 +23,9 @@ OPTIONAL PARAMETERS
 arch
    set this if you need to force and specific arch (ubuntu specific)
 
+signed-by
+   provide a GPG key fingerprint or keyring path for signature checks
+
 state
    'present' or 'absent', defaults to 'present'
 
@@ -56,6 +59,11 @@ EXAMPLES
        --uri http://archive.canonical.com/ \
        --component partner --state present
 
+    __apt_source goaccess \
+       --uri http://deb.goaccess.io/ \
+       --component main \
+       --signed-by C03B48887D5E56B046715D3297BD1A0133449C3D
+
 
 AUTHORS
 -------

cdist/conf/type/__apt_source/manifest

@@ -21,6 +21,7 @@
 name="$__object_id"
 state="$(cat "$__object/parameter/state")"
 uri="$(cat "$__object/parameter/uri")"
+options=""
 
 if [ -f "$__object/parameter/distribution" ]; then
    distribution="$(cat "$__object/parameter/distribution")"
@@ -31,9 +32,15 @@ fi
 component="$(cat "$__object/parameter/component")"
 
 if [ -f "$__object/parameter/arch" ]; then
-   forcedarch="[arch=$(cat "$__object/parameter/arch")]"
-else
-   forcedarch=""
+   options="arch=$(cat "$__object/parameter/arch")"
+fi
+
+if [ -f "$__object/parameter/signed-by" ]; then
+   options="$options signed-by=$(cat "$__object/parameter/signed-by")"
+fi
+
+if [ "$options" ]; then
+    options="[$options]"
 fi
 
 # export variables for use in template
@@ -41,7 +48,7 @@ export name
 export uri
 export distribution
 export component
-export forcedarch
+export options
 
 # generate file from template
 mkdir "$__object/files"

cdist/conf/type/__apt_source/parameter/optional

@@ -1,4 +1,5 @@
 state
 distribution
 component
-arch
+arch
+signed-by

cdist/conf/type/__apt_update_index/gencode-remote

@@ -18,9 +18,23 @@
 # along with cdist. If not, see <http://www.gnu.org/licenses/>.
 #
 
+
+# There are special arguments to apt(8) to prevent aborts if apt woudn't been
+# updated after the 19th April 2021 till the bullseye release. The additional
+# arguments acknoledge the happend suite change (the apt(8) update does the
+# same by itself).
+#
+# Using '-o $config' instead of the --allow-releaseinfo-change-* parameter
+# allows backward compatablility to pre-buster Debian versions.
+#
+# See more: ticket #861
+# https://code.ungleich.ch/ungleich-public/cdist/-/issues/861
+apt_opts="-o Acquire::AllowReleaseInfoChange::Suite=true -o Acquire::AllowReleaseInfoChange::Version=true"
+
 # run 'apt-get update' if anything in /etc/apt is newer then /var/lib/apt/lists
+#   it will be run a second time on error as a redundancy messure to success
 cat << DONE
 if find /etc/apt -mindepth 1 -cnewer /var/lib/apt/lists | grep . > /dev/null; then
-   apt-get update || apt-get update
+   apt-get $apt_opts update || apt-get $apt_opts update
 fi
 DONE

cdist/conf/type/__debconf_set_selections/explorer/state

@@ -0,0 +1,142 @@
+#!/bin/sh -e
+#
+# 2021 Dennis Camera (dennis.camera at ssrq-sds-fds.ch)
+#
+# This file is part of cdist.
+#
+# cdist is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# cdist is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with cdist. If not, see <http://www.gnu.org/licenses/>.
+#
+# Determine current debconf selections' state.
+# Prints one of:
+#   present: all selections are already set as they should.
+#   different: one or more of the selections have a different value.
+#   absent: one or more of the selections are not (currently) defined.
+#
+
+test -x /usr/bin/perl || {
+	# cannot find perl (no perl ~ no debconf)
+	echo 'absent'
+	exit 0
+}
+
+linesfile="${__object:?}/parameter/line"
+test -s "${linesfile}" || {
+	if test -s "${__object:?}/parameter/file"
+	then
+		echo absent
+	else
+		echo present
+	fi
+	exit 0
+}
+
+# assert __type_explorer is set (because it is used by the Perl script)
+: "${__type_explorer:?}"
+
+/usr/bin/perl -- - "${linesfile}" <<'EOF'
+use strict;
+use warnings "all";
+
+use Fcntl qw(:DEFAULT :flock);
+
+use Debconf::Db;
+use Debconf::Question;
+
+# Extract @known... arrays from debconf-set-selections
+# These values are required to distinguish flags and values in the given lines.
+# DC: I couldn't think of a more ugly solution to the problem…
+my @knownflags;
+my @knowntypes;
+my $debconf_set_selections = '/usr/bin/debconf-set-selections';
+if (-e $debconf_set_selections) {
+	my $sed_known = 's/^my \(@known\(flags\|types\) = qw([a-z ]*);\).*$/\1/p';
+	eval `sed -n '$sed_known' '$debconf_set_selections'`;
+}
+
+sub mungeline ($) {
+	my $line = shift;
+	chomp $line;
+	$line =~ s/\r$//;
+	return $line;
+}
+
+sub fatal { printf STDERR @_; exit 1; }
+
+my $state = 'present';
+
+sub state {
+	my $new = shift;
+	if ($state eq 'present'
+	    or ($state eq 'different' and $new eq 'absent')) {
+		$state = $new;
+	}
+}
+
+
+# Load Debconf DB but manually lock on the state explorer script,
+# because Debconf aborts immediately if executed concurrently.
+# This is not really an ideal solution because the Debconf DB could be locked by
+# another process (e.g. apt-get), but no way to achieve this could be found.
+# If you know how to, please provide a patch.
+my $lockfile = "%ENV{'__type_explorer'}/state";
+if (open my $lock_fh, '+<', $lockfile) {
+   flock $lock_fh, LOCK_EX or die "Cannot lock $lockfile";
+}
+{
+	Debconf::Db->load(readonly => 'true');
+}
+
+
+while (<>) {
+	# Read and process lines (taken from debconf-set-selections)
+	$_ = mungeline($_);
+	while (/\\$/ && ! eof) {
+		s/\\$//;
+		$_ .= mungeline(<>);
+	}
+	next if /^\s*$/ || /^\s*\#/;
+
+	my ($owner, $label, $type, $content) = /^\s*(\S+)\s+(\S+)\s+(\S+)(?:\s(.*))?/
+		or fatal "invalid line: %s\n", $_;
+	$content = '' unless defined $content;
+
+
+	# Compare is and should state
+	my $q = Debconf::Question->get($label);
+
+	unless (defined $q) {
+		# probably a preseed
+		state 'absent';
+		next;
+	}
+
+	if (grep { $_ eq $q->type } @knownflags) {
+		# This line wants to set a flag, presumably.
+		if ($q->flag($q->type) ne $content) {
+			state 'different';
+		}
+	} else {
+		# Otherwise, it's probably a value…
+		if ($q->value ne $content) {
+			state 'different';
+		}
+
+		unless (grep { $_ eq $owner } (split /, /, $q->owners)) {
+			state 'different';
+		}
+	}
+}
+
+printf "%s\n", $state;
+EOF

cdist/conf/type/__debconf_set_selections/gencode-remote

@@ -1,6 +1,7 @@
 #!/bin/sh -e
 #
 # 2011-2014 Nico Schottelius (nico-cdist at schottelius.org)
+# 2021 Dennis Camera (dennis.camera at ssrq-sds-fds.ch)
 #
 # This file is part of cdist.
 #
@@ -17,16 +18,37 @@
 # You should have received a copy of the GNU General Public License
 # along with cdist. If not, see <http://www.gnu.org/licenses/>.
 #
-#
-# Setup selections
-#
 
-filename="$(cat "$__object/parameter/file")"
-
-if [ "$filename" = "-" ]; then
-    filename="$__object/stdin"
+if test -f "${__object:?}/parameter/line"
+then
+	filename="${__object:?}/parameter/line"
+elif test -s "${__object:?}/parameter/file"
+then
+	filename=$(cat "${__object:?}/parameter/file")
+	if test "${filename}" = '-'
+	then
+		filename="${__object:?}/stdin"
+	fi
+else
+	printf 'Neither --line nor --file set.\n' >&2
+	exit 1
 fi
 
-echo "debconf-set-selections << __file-eof"
-cat "$filename"
-echo "__file-eof"
+# setting no lines makes no sense
+test -s "${filename}" || exit 0
+
+state_is=$(cat "${__object:?}/explorer/state")
+
+if test "${state_is}" != 'present'
+then
+	cat <<-CODE
+	debconf-set-selections <<'EOF'
+	$(cat "${filename}")
+	EOF
+	CODE
+
+	awk '
+		{
+			printf "set %s %s %s %s\n", $1, $2, $3, $4
+		}' "${filename}" >>"${__messages_out:?}"
+fi

cdist/conf/type/__debconf_set_selections/man.rst

@@ -8,15 +8,33 @@ cdist-type__debconf_set_selections - Setup debconf selections
 
 DESCRIPTION
 -----------
-On Debian and alike systems debconf-set-selections(1) can be used
+On Debian and alike systems :strong:`debconf-set-selections`\ (1) can be used
 to setup configuration parameters.
 
 
 REQUIRED PARAMETERS
 -------------------
+cf. ``--line``.
+
+
+OPTIONAL PARAMETERS
+-------------------
 file
-   Use the given filename as input for debconf-set-selections(1)
-   If filename is "-", read from stdin.
+   Use the given filename as input for :strong:`debconf-set-selections`\ (1)
+   If filename is ``-``, read from stdin.
+
+   **This parameter is deprecated, because it doesn't work with state detection.**
+line
+   A line in :strong:`debconf-set-selections`\ (1) compatible format.
+   This parameter can be used multiple times to set multiple options.
+
+   (This parameter is actually required, but marked optional because the
+   deprecated ``--file`` is still accepted.)
+
+
+BOOLEAN PARAMETERS
+------------------
+None.
 
 
 EXAMPLES
@@ -24,30 +42,29 @@ EXAMPLES
 
 .. code-block:: sh
 
-    # Setup configuration for nslcd
-    __debconf_set_selections nslcd --file /path/to/file
+    # Setup gitolite's gituser
+    __debconf_set_selections nslcd --line 'gitolite gitolite/gituser string git'
 
-    # Setup configuration for nslcd from another type
-    __debconf_set_selections nslcd --file "$__type/files/preseed/nslcd"
-
-    __debconf_set_selections nslcd --file - << eof
-    gitolite gitolite/gituser string git
-    eof
+    # Setup configuration for nslcd from a file.
+    # NB: Multiple lines can be passed to --line, although this can be considered a hack.
+    __debconf_set_selections nslcd --line "$(cat "${__files:?}/preseed/nslcd.debconf")"
 
 
 SEE ALSO
 --------
-:strong:`debconf-set-selections`\ (1), :strong:`cdist-type__update_alternatives`\ (7)
+- :strong:`cdist-type__update_alternatives`\ (7)
+- :strong:`debconf-set-selections`\ (1)
 
 
 AUTHORS
 -------
-Nico Schottelius <nico-cdist--@--schottelius.org>
+| Nico Schottelius <nico-cdist--@--schottelius.org>
+| Dennis Camera <dennis.camera--@--ssrq-sds-fds.ch>
 
 
 COPYING
 -------
-Copyright \(C) 2011-2014 Nico Schottelius. You can redistribute it
-and/or modify it under the terms of the GNU General Public License as
-published by the Free Software Foundation, either version 3 of the
-License, or (at your option) any later version.
+Copyright \(C) 2011-2014 Nico Schottelius, 2021 Dennis Camera.
+You can redistribute it and/or modify it under the terms of the GNU General
+Public License as published by the Free Software Foundation, either version 3 of
+the License, or (at your option) any later version.

cdist/conf/type/__debconf_set_selections/manifest

@@ -1,6 +1,6 @@
 #!/bin/sh -e
 #
-# 2015 Dominique Roux (dominique.roux4 at gmail.com)
+# 2021 Dennis Camera (dennis.camera at ssrq-sds-fds.ch)
 #
 # This file is part of cdist.
 #
@@ -18,20 +18,4 @@
 # along with cdist. If not, see <http://www.gnu.org/licenses/>.
 #
 
-if [ -f "$__object/parameter/destination" ]; then
-    destination=$(cat "$__object/parameter/destination")
-else
-    destination="/$__object_id"
-fi
-
-ownergroup=""
-if [ -f "$__object/parameter/owner" ]; then
-    ownergroup=$(cat "$__object/parameter/owner")
-fi
-if [ -f "$__object/parameter/group" ]; then
-    ownergroup="${ownergroup}:$(cat "$__object/parameter/group")"
-fi
-
-if [ "$ownergroup" ]; then
-    echo chown -R "$ownergroup" "$destination"
-fi
+__package_apt debconf

cdist/conf/type/__debconf_set_selections/parameter/deprecated/file

@@ -0,0 +1 @@
+'file' has been deprecated in favour of 'line' in order to provide idempotency.

cdist/conf/type/__debconf_set_selections/parameter/optional_multiple

@@ -0,0 +1 @@
+line

cdist/conf/type/__dot_file/man.rst

@@ -37,6 +37,12 @@ state
 source
     forwarded to :strong:`__file` type
 
+file
+    forwarded to :strong:`__file` type
+    This can be used if multiple users need to have a dotfile updated,
+    which will result in duplicate object id errors. When using the
+    file parameter the object id can be some unique value.
+
 MESSAGES
 --------
 
@@ -61,6 +67,15 @@ EXAMPLES
     # Install default xmonad config for user 'eve'. Parent directory is created automatically.
     __dot_file .xmonad/xmonad.hs --user eve --state exists --source "$__files/xmonad.hs"
 
+    # install .vimrc for root and some users
+    for user in root userx usery userz; do
+        __dot_file "${user}_dot_vimrc" \
+            --user $user \
+            --file .vimrc \
+            --state exists \
+            --source "$__files/$user/.vimrc"
+    done
+
 SEE ALSO
 --------
 

cdist/conf/type/__dot_file/manifest

@@ -20,13 +20,19 @@ user="$(cat "${__object}/parameter/user")"
 home="$(cat "${__object}/explorer/home")"
 primary_group="$(cat "${__object}/explorer/primary_group")"
 dirmode="$(cat "${__object}/parameter/dirmode")"
+if [ -f "${__object}/parameter/file" ]; then
+    file="$(cat "${__object}/parameter/file")"
+else
+    file="${__object_id}"
+fi
+
 
 # Create parent directory. Type __directory has flag 'parents', but it
 # will leave us with root-owned directory in user home, which is not
 # acceptable. So we create parent directories one-by-one. XXX: maybe
 # it should be fixed in '__directory'?
 set --
-subpath=${__object_id}
+subpath=${file}
 while subpath="$(dirname "${subpath}")" ; do
 	[ "${subpath}" = . ] && break
 	set -- "${subpath}" "$@"
@@ -64,4 +70,4 @@ if [ "${source}" = "-" ] ; then
 fi
 unset source
 
-__file "${home}/${__object_id}" --owner "$user" --group "$primary_group" "$@"
+__file "${home}/${file}" --owner "$user" --group "$primary_group" "$@"

cdist/conf/type/__download/explorer/remote_cmd

@@ -1,19 +0,0 @@
-#!/bin/sh -e
-
-if [ -f "$__object/parameter/cmd-get" ]
-then
-    cmd="$( cat "$__object/parameter/cmd-get" )"
-
-elif command -v curl > /dev/null
-then
-    cmd="curl -L -o - '%s'"
-
-elif command -v fetch > /dev/null
-then
-    cmd="fetch -o - '%s'"
-
-else
-    cmd="wget -O - '%s'"
-fi
-
-echo "$cmd"

cdist/conf/type/__download/explorer/remote_cmd_get

@@ -0,0 +1,16 @@
+#!/bin/sh -e
+
+if [ -f "$__object/parameter/cmd-get" ]
+then
+    cat "$__object/parameter/cmd-get"
+elif
+    command -v curl > /dev/null
+then
+    echo "curl -sSL -o - '%s'"
+elif
+    command -v fetch > /dev/null
+then
+    echo "fetch -o - '%s'"
+else
+    echo "wget -O - '%s'"
+fi

cdist/conf/type/__download/explorer/remote_cmd_sum

@@ -0,0 +1,82 @@
+#!/bin/sh -e
+
+if [ ! -f "$__object/parameter/sum" ]
+then
+    exit 0
+fi
+
+if [ -f "$__object/parameter/cmd-sum" ]
+then
+    cat "$__object/parameter/cmd-sum"
+    exit 0
+fi
+
+sum_should="$( cat "$__object/parameter/sum" )"
+
+if echo "$sum_should" | grep -Fq ':'
+then
+    sum_hash="$( echo "$sum_should" | cut -d : -f 1 )"
+else
+    if echo "$sum_should" | grep -Eq '^[0-9]+\s[0-9]+$'
+    then
+        sum_hash='cksum'
+    elif
+        echo "$sum_should" | grep -Eiq '^[a-f0-9]{32}$'
+    then
+        sum_hash='md5'
+    elif
+        echo "$sum_should" | grep -Eiq '^[a-f0-9]{40}$'
+    then
+        sum_hash='sha1'
+    elif
+        echo "$sum_should" | grep -Eiq '^[a-f0-9]{64}$'
+    then
+        sum_hash='sha256'
+    else
+        echo 'hash format detection failed' >&2
+        exit 1
+    fi
+fi
+
+os="$( "$__explorer/os" )"
+
+case "$sum_hash" in
+    cksum)
+        echo "cksum %s | awk '{print \$1\" \"\$2}'"
+    ;;
+    md5)
+        case "$os" in
+            freebsd)
+                echo "md5 -q %s"
+            ;;
+            *)
+                echo "md5sum %s | awk '{print \$1}'"
+            ;;
+        esac
+    ;;
+    sha1)
+        case "$os" in
+            freebsd)
+                echo "sha1 -q %s"
+            ;;
+            *)
+                echo "sha1sum %s | awk '{print \$1}'"
+            ;;
+        esac
+    ;;
+    sha256)
+        case "$os" in
+            freebsd)
+                echo "sha256 -q %s"
+            ;;
+            *)
+                echo "sha256sum %s | awk '{print \$1}'"
+            ;;
+        esac
+    ;;
+    *)
+        # we arrive here only if --sum is given with unknown format prefix
+        echo "unknown hash format: $sum_hash" >&2
+        exit 1
+    ;;
+esac

cdist/conf/type/__download/explorer/state

@@ -1,6 +1,11 @@
 #!/bin/sh -e
 
-dst="/$__object_id"
+if [ -f "$__object/parameter/destination" ]
+then
+    dst="$( cat "$__object/parameter/destination" )"
+else
+    dst="/$__object_id"
+fi
 
 if [ ! -f "$dst" ]
 then
@@ -16,57 +21,19 @@ fi
 
 sum_should="$( cat "$__object/parameter/sum" )"
 
-if [ -f "$__object/parameter/cmd-sum" ]
+if echo "$sum_should" | grep -Fq ':'
 then
-    # shellcheck disable=SC2059
-    sum_is="$( eval "$( printf \
-        "$( cat "$__object/parameter/cmd-sum" )" \
-        "$dst" )" )"
-else
-    os="$( "$__explorer/os" )"
-
-    if echo "$sum_should" | grep -Eq '^[0-9]+\s[0-9]+$'
-    then
-        sum_is="$( cksum "$dst" | awk '{print $1" "$2}' )"
-
-    elif echo "$sum_should" | grep -Eiq '^md5:[a-f0-9]{32}$'
-    then
-        case "$os" in
-            freebsd)
-                sum_is="md5:$( md5 -q "$dst" )"
-            ;;
-            *)
-                sum_is="md5:$( md5sum "$dst" | awk '{print $1}' )"
-            ;;
-        esac
-
-    elif echo "$sum_should" | grep -Eiq '^sha1:[a-f0-9]{40}$'
-    then
-        case "$os" in
-            freebsd)
-                sum_is="sha1:$( sha1 -q "$dst" )"
-            ;;
-            *)
-                sum_is="sha1:$( sha1sum "$dst" | awk '{print $1}' )"
-            ;;
-        esac
-
-    elif echo "$sum_should" | grep -Eiq '^sha256:[a-f0-9]{64}$'
-    then
-        case "$os" in
-            freebsd)
-                sum_is="sha256:$( sha256 -q "$dst" )"
-            ;;
-            *)
-                sum_is="sha256:$( sha256sum "$dst" | awk '{print $1}' )"
-            ;;
-        esac
-    fi
+    sum_should="$( echo "$sum_should" | cut -d : -f 2 )"
 fi
 
+sum_cmd="$( "$__type_explorer/remote_cmd_sum" )"
+
+# shellcheck disable=SC2059
+sum_is="$( eval "$( printf "$sum_cmd" "'$dst'" )" )"
+
 if [ -z "$sum_is" ]
 then
-    echo 'no checksum from target' >&2
+    echo 'existing destination checksum failed' >&2
     exit 1
 fi
 

cdist/conf/type/__download/gencode-local

@@ -11,34 +11,133 @@ fi
 
 url="$( cat "$__object/parameter/url" )"
 
-tmp="$( mktemp )"
-
-dst="/$__object_id"
+if [ -f "$__object/parameter/destination" ]
+then
+    dst="$( cat "$__object/parameter/destination" )"
+else
+    dst="/$__object_id"
+fi
 
 if [ -f "$__object/parameter/cmd-get" ]
 then
     cmd="$( cat "$__object/parameter/cmd-get" )"
 
-elif command -v wget > /dev/null
-then
-    cmd="wget -O - '%s'"
-
 elif command -v curl > /dev/null
 then
-    cmd="curl -L -o - '%s'"
+    cmd="curl -sSL -o - '%s'"
 
 elif command -v fetch > /dev/null
 then
     cmd="fetch -o - '%s'"
 
+elif command -v wget > /dev/null
+then
+    cmd="wget -O - '%s'"
+
 else
-    echo 'no usable locally installed utility for downloading' >&2
+    echo 'local download failed, no usable utility' >&2
     exit 1
 fi
 
-printf "$cmd > %s\n" \
-    "$url" \
-    "$tmp"
+echo "download_tmp=\"\$( mktemp )\""
+
+# shellcheck disable=SC2059
+printf "$cmd > \"\$download_tmp\"\n" "$url"
+
+if [ -f "$__object/parameter/sum" ]
+then
+    sum_should="$( cat "$__object/parameter/sum" )"
+
+    if [ -f "$__object/parameter/cmd-sum" ]
+    then
+        local_cmd_sum="$( cat "$__object/parameter/cmd-sum" )"
+    else
+        if echo "$sum_should" | grep -Fq ':'
+        then
+            sum_hash="$( echo "$sum_should" | cut -d : -f 1 )"
+
+            sum_should="$( echo "$sum_should" | cut -d : -f 2 )"
+        else
+            if echo "$sum_should" | grep -Eq '^[0-9]+\s[0-9]+$'
+            then
+                sum_hash='cksum'
+            elif
+                echo "$sum_should" | grep -Eiq '^[a-f0-9]{32}$'
+            then
+                sum_hash='md5'
+            elif
+                echo "$sum_should" | grep -Eiq '^[a-f0-9]{40}$'
+            then
+                sum_hash='sha1'
+            elif
+                echo "$sum_should" | grep -Eiq '^[a-f0-9]{64}$'
+            then
+                sum_hash='sha256'
+            else
+                echo 'hash format detection failed' >&2
+                exit 1
+            fi
+        fi
+
+        case "$sum_hash" in
+            cksum)
+                local_cmd_sum="cksum %s | awk '{print \$1\" \"\$2}'"
+            ;;
+            md5)
+                if command -v md5 > /dev/null
+                then
+                    local_cmd_sum="md5 -q %s"
+                elif
+                    command -v md5sum > /dev/null
+                then
+                    local_cmd_sum="md5sum %s | awk '{print \$1}'"
+                fi
+            ;;
+            sha1)
+                if command -v sha1 > /dev/null
+                then
+                    local_cmd_sum="sha1 -q %s"
+                elif
+                    command -v sha1sum > /dev/null
+                then
+                    local_cmd_sum="sha1sum %s | awk '{print \$1}'"
+                fi
+            ;;
+            sha256)
+                if command -v sha256 > /dev/null
+                then
+                    local_cmd_sum="sha256 -q %s"
+                elif
+                    command -v sha256sum > /dev/null
+                then
+                    local_cmd_sum="sha256sum %s | awk '{print \$1}'"
+                fi
+            ;;
+            *)
+                # we arrive here only if --sum is given with unknown format prefix
+                echo "unknown hash format: $sum_hash" >&2
+                exit 1
+            ;;
+        esac
+
+        if [ -z "$local_cmd_sum" ]
+        then
+            echo 'local checksum verification failed, no usable utility' >&2
+            exit 1
+        fi
+    fi
+
+    # shellcheck disable=SC2059
+    echo "sum_is=\"\$( $( printf "$local_cmd_sum" "\"\$download_tmp\"" ) )\""
+
+    echo "if [ \"\$sum_is\" != '$sum_should' ]; then"
+
+    echo "echo 'local download checksum mismatch' >&2"
+
+    echo "rm -f \"\$download_tmp\""
+
+    echo 'exit 1; fi'
+fi
 
 if echo "$__target_host" | grep -Eq '^[0-9a-fA-F:]+$'
 then
@@ -47,12 +146,10 @@ else
     target_host="$__target_host"
 fi
 
-printf '%s %s %s:%s\n' \
+# shellcheck disable=SC2016
+printf '%s "$download_tmp" %s:%s\n' \
     "$__remote_copy" \
-    "$tmp" \
     "$target_host" \
     "$dst"
 
-echo "rm -f '$tmp'"
-
-echo 'downloaded' > "$__messages_out"
+echo "rm -f \"\$download_tmp\""

cdist/conf/type/__download/gencode-remote

@@ -6,17 +6,51 @@ state_is="$( cat "$__object/explorer/state" )"
 
 if [ "$download" = 'remote' ] && [ "$state_is" != 'present' ]
 then
-    cmd="$( cat "$__object/explorer/remote_cmd" )"
+    cmd_get="$( cat "$__object/explorer/remote_cmd_get" )"
 
     url="$( cat "$__object/parameter/url" )"
 
-    dst="/$__object_id"
+    if [ -f "$__object/parameter/destination" ]
+    then
+        dst="$( cat "$__object/parameter/destination" )"
+    else
+        dst="/$__object_id"
+    fi
 
-    printf "$cmd > %s\n" \
-        "$url" \
-        "$dst"
+    echo "download_tmp=\"\$( mktemp )\""
 
-    echo 'downloaded' > "$__messages_out"
+    # shellcheck disable=SC2059
+    printf "$cmd_get > \"\$download_tmp\"\n" "$url"
+
+    if [ -f "$__object/parameter/sum" ]
+    then
+        sum_should="$( cat "$__object/parameter/sum" )"
+
+        if [ -f "$__object/parameter/cmd-sum" ]
+        then
+            remote_cmd_sum="$( cat "$__object/parameter/cmd-sum" )"
+        else
+            remote_cmd_sum="$( cat "$__object/explorer/remote_cmd_sum" )"
+
+            if echo "$sum_should" | grep -Fq ':'
+            then
+                sum_should="$( echo "$sum_should" | cut -d : -f 2 )"
+            fi
+        fi
+
+        # shellcheck disable=SC2059
+        echo "sum_is=\"\$( $( printf "$remote_cmd_sum" "\"\$download_tmp\"" ) )\""
+
+        echo "if [ \"\$sum_is\" != '$sum_should' ]; then"
+
+        echo "echo 'remote download checksum mismatch' >&2"
+
+        echo "rm -f \"\$download_tmp\""
+
+        echo 'exit 1; fi'
+    fi
+
+    echo "mv \"\$download_tmp\" '$dst'"
 fi
 
 if [ -f "$__object/parameter/onchange" ] && [ "$state_is" != "present" ]

cdist/conf/type/__download/man.rst

@@ -8,7 +8,7 @@ cdist-type__download - Download a file
 
 DESCRIPTION
 -----------
-By default type will try to use ``wget``, ``curl`` or ``fetch``.
+By default type will try to use ``curl``, ``fetch`` or ``wget``.
 If download happens in target (see ``--download``) then type will
 fallback to (and install) ``wget``.
 
@@ -16,6 +16,8 @@ If download happens in local machine, then environment variables like
 ``{http,https,ftp}_proxy`` etc can be used on cdist execution
 (``http_proxy=foo cdist config ...``).
 
+To change downloaded file's owner, group or permissions, use ``require='__download/path/to/file' __file ...``.
+
 
 REQUIRED PARAMETERS
 -------------------
@@ -25,14 +27,29 @@ url
 
 OPTIONAL PARAMETERS
 -------------------
+destination
+   Downloaded file's destination in target. If unset, ``$__object_id`` is used.
+
 sum
-   Checksum is used to decide if existing destination file must be redownloaded.
-   By default output of ``cksum`` without filename is expected.
-   Other hash formats supported with prefixes: ``md5:``, ``sha1:`` and ``sha256:``.
+   Supported formats: ``cksum`` output without file name, MD5, SHA1 and SHA256.
+
+   Type tries to detect hash format with regexes, but prefixes
+   ``cksum:``, ``md5:``, ``sha1:`` and ``sha256:`` are also supported.
+
+   Checksum have two purposes - state check and post-download verification.
+   In state check, if destination checksum mismatches, then content of URL
+   will be downloaded to temporary file. If downloaded temporary file's
+   checksum matches, then it will be moved to destination (overwritten).
+
+   For local downloads it is expected that usable utilities for checksum
+   calculation exist in the system.
 
 download
-   If ``local`` (default), then download file to local storage and copy
-   it to target host. If ``remote``, then download happens in target.
+   If ``local`` (default), then file is downloaded to local storage and copied
+   to target host. If ``remote``, then download happens in target.
+
+   For local downloads it is expected that usable utilities for downloading
+   exist in the system. Type will try to use ``curl``, ``fetch`` or ``wget``.
 
 cmd-get
    Command used for downloading.
@@ -62,7 +79,7 @@ EXAMPLES
     require='__directory/opt/cpma' \
         __download /opt/cpma/cnq3.zip \
             --url https://cdn.playmorepromode.com/files/cnq3/cnq3-1.51.zip \
-            --sum md5:46da3021ca9eace277115ec9106c5b46
+            --sum 46da3021ca9eace277115ec9106c5b46
 
     require='__download/opt/cpma/cnq3.zip' \
         __unpack /opt/cpma/cnq3.zip \

cdist/conf/type/__download/manifest

@@ -1,6 +1,6 @@
 #!/bin/sh -e
 
-if grep -Eq '^wget' "$__object/explorer/remote_cmd"
+if grep -Eq '^wget' "$__object/explorer/remote_cmd_get"
 then
     __package wget
 fi

cdist/conf/type/__download/parameter/optional

@@ -1,5 +1,6 @@
-sum
 cmd-get
 cmd-sum
+destination
 download
 onchange
+sum

cdist/conf/type/__file/gencode-local

@@ -1,7 +1,7 @@
 #!/bin/sh -e
 #
 # 2011-2012 Nico Schottelius (nico-cdist at schottelius.org)
-# 2013 Steven Armstrong (steven-cdist armstrong.cc)
+# 2013-2022 Steven Armstrong (steven-cdist armstrong.cc)
 #
 # This file is part of cdist.
 #
@@ -72,6 +72,7 @@ if [ "$state_should" = "present" ] || [ "$state_should" = "exists" ]; then
          if [ "$type" != "file" ]; then
             # destination is not a regular file, upload source to replace it
             upload_file=1
+            echo upload >> "$__messages_out"
          else
             local_cksum="$(cksum < "$source")"
             remote_cksum="$(cat "$__object/explorer/cksum")"
@@ -88,27 +89,39 @@ if [ "$state_should" = "present" ] || [ "$state_should" = "exists" ]; then
       mkdir "$__object/files"
       touch "$__object/files/set-attributes"
 
-      # upload file to temp location
-      tempfile_template="${destination}.cdist.XXXXXXXXXX"
-      cat << DONE
-destination_upload="\$($__remote_exec $__target_host "mktemp $tempfile_template")"
-DONE
-      if [ "$upload_file" ]; then
-         echo upload >> "$__messages_out"
-         # IPv6 fix
-         if echo "${__target_host}" | grep -q -E '^[0-9a-fA-F:]+$'
-         then
-             my_target_host="[${__target_host}]"
-         else
-             my_target_host="${__target_host}"
-         fi
-         cat << DONE
-$__remote_copy "$source" "${my_target_host}:\$destination_upload"
-DONE
+      if [ "$create_file" ]; then
+         # When creating an empty file we create it locally and then
+         # upload it so that permissions can be set before moving the file
+         # into place.
+         source="$__object/files/empty"
+         touch "$source"
       fi
-# move uploaded file into place
-cat << DONE
-$__remote_exec $__target_host "rm -rf \"$destination\"; mv \"\$destination_upload\" \"$destination\""
+
+      # upload file to temp location
+      upload_destination="${destination}.cdist.${__cdist_object_marker}.$$"
+      # Yes, we are aware that this is a race condition.
+      # However:
+      # a) cdist usually writes to directories that are not user writable
+      #    (probably > 99.9%)
+      # b) if they are user owned, the user / attacker always wins
+      #    (probably < 0.1%)
+      # c) the only case which we could improve are tmp directories and we
+      #    don't think managing tmp directories with cdist is a typical case
+      #    ("the rest %)"
+
+      # Tell gencode-remote to where we uploaded the file so it can move
+      # it to its final destination.
+      echo "$upload_destination" > "$__object/files/upload-destination"
+
+      # IPv6 fix
+      if echo "${__target_host}" | grep -q -E '^[0-9a-fA-F:]+$'
+      then
+          my_target_host="[${__target_host}]"
+      else
+          my_target_host="${__target_host}"
+      fi
+      cat << DONE
+$__remote_copy "$source" "${my_target_host}:${upload_destination}"
 DONE
    fi
 fi

cdist/conf/type/__file/gencode-remote

@@ -1,7 +1,7 @@
 #!/bin/sh -e
 #
 # 2011-2013 Nico Schottelius (nico-cdist at schottelius.org)
-# 2013 Steven Armstrong (steven-cdist armstrong.cc)
+# 2013-2022 Steven Armstrong (steven-cdist armstrong.cc)
 #
 # This file is part of cdist.
 #
@@ -62,6 +62,13 @@ set_mode() {
 
 case "$state_should" in
     present|exists)
+        if [ -f "$__object/files/upload-destination" ]; then
+            final_destination="$destination"
+            # We change the 'global' $destination variable here so we can
+            # change attributes of the new/uploaded file before moving it
+            # to it's final destination.
+            destination="$(cat "$__object/files/upload-destination")"
+        fi
         # Note: Mode - needs to happen last as a chown/chgrp can alter mode by
         #  clearing S_ISUID and S_ISGID bits (see chown(2))
         for attribute in group owner mode; do
@@ -81,6 +88,11 @@ case "$state_should" in
                 fi
             fi
         done
+        if [ -f "$__object/files/upload-destination" ]; then
+            # move uploaded file into place
+            printf 'rm -rf "%s"\n' "$final_destination"
+            printf 'mv "%s" "%s"\n' "$destination" "$final_destination"
+        fi
         if [ -f "$__object/files/set-attributes" ]; then
             # set-attributes is created if file is created or uploaded in gencode-local
             fire_onchange=1

cdist/conf/type/__filesystem/explorer/lsblk

@@ -27,7 +27,7 @@ else
 fi
 
 case "$os" in
-    alpine|centos|fedora|redhat|suse|gentoo)
+    alpine|centos|fedora|gentoo|redhat|suse|ubuntu)
         if [ ! -x "$(command -v lsblk)" ]; then
             echo "lsblk is required for __filesystem type" >&2
             exit 1

cdist/conf/type/__grafana_dashboard/manifest

@@ -15,7 +15,7 @@ case $os in
                 # Differntation not needed anymore
                 apt_source_distribution=stable
                 ;;
-            10*)
+            10*|11*)
                 # Differntation not needed anymore
                 apt_source_distribution=stable
                 ;;

cdist/conf/type/__haproxy_dualstack/files/http

@@ -0,0 +1,8 @@
+frontend http
+	bind	BIND@:80
+	mode	http
+	option	httplog
+	default_backend	http
+
+backend http
+	mode	http

cdist/conf/type/__haproxy_dualstack/files/https

@@ -0,0 +1,10 @@
+frontend https
+	bind	BIND@:443
+	mode	tcp
+	option	tcplog
+	tcp-request	inspect-delay 5s
+	tcp-request	content accept if { req_ssl_hello_type 1 }
+	default_backend	https
+
+backend https
+	mode	tcp

cdist/conf/type/__haproxy_dualstack/files/imaps

@@ -0,0 +1,12 @@
+frontend imaps
+	bind	BIND@:143
+	bind	BIND@:993
+
+	mode	tcp
+	option	tcplog
+	tcp-request	inspect-delay 5s
+	tcp-request	content accept if { req_ssl_hello_type 1 }
+	default_backend	imaps
+
+backend imaps
+	mode	tcp

cdist/conf/type/__haproxy_dualstack/files/smtps

@@ -0,0 +1,12 @@
+frontend smtps
+	bind	BIND@:25
+	bind	BIND@:465
+
+	mode	tcp
+	option	tcplog
+	tcp-request	inspect-delay 5s
+	tcp-request	content accept if { req_ssl_hello_type 1 }
+	default_backend	smtps
+
+backend smtps
+	mode	tcp

cdist/conf/type/__haproxy_dualstack/man.rst

@@ -0,0 +1,121 @@
+cdist-type__haproxy_dualstack(7)
+================================
+
+
+NAME
+----
+cdist-type__haproxy_dualstack - Proxy services from a dual-stack server
+
+
+DESCRIPTION
+-----------
+This (singleton) type installs and configures haproxy to act as a dual-stack
+proxy for single-stack services.
+
+This can be useful to add IPv4 support to IPv6-only services while only using
+one IPv4 for many such services.
+
+By default this type uses the plain TCP proxy mode, which means that there is no
+need for TLS termination on this host when SNI is supported.
+This also means that proxied services will not receive the client's IP address,
+but will see the proxy's IP address instead (that of `$__target_host`).
+
+This can be solved by using the PROXY protocol, but do take into account that,
+e.g. nginx cannot serve both regular HTTP(S) and PROXY protocols on the same
+port, so you will need to use other ports for that.
+
+As a recommendation in this type: use TCP ports 8080 and 591 respectively to
+serve HTTP and HTTPS using the PROXY protocol.
+
+See the EXAMPLES for more details.
+
+
+OPTIONAL PARAMETERS
+-------------------
+v4proxy
+    Proxy incoming IPv4 connections to the equivalent IPv6 endpoint.
+    In its simplest use, it must be a NAME with an `AAAA` DNS entry, which is
+    the IP address actually providing the proxied services.
+    The full format of this argument is:
+    `[proxy:]NAME[[:PROTOCOL_1=PORT_1]...[:PROTOCOL_N=PORT_N]]`
+    Where starting with `proxy:` determines that the PROXY protocol must be
+    used and each `:PROTOCOL=PORT` (e.g. `:http=8080` or `:https=591`) is a PORT
+    override for the given PROTOCOL (see `--protocol`), if not present the
+    PROTOCOL's default port will be used.
+
+
+v6proxy
+    Proxy incoming IPv6 connections to the equivalent IPv4 endpoint.
+    In its simplest use, it must be a NAME with an `A` DNS entry, which is
+    the IP address actually providing the proxied services.
+    See `--v4proxy` for more options and details.
+
+protocol
+    Can be passed multiple times or as a space-separated list of protocols.
+    Currently supported protocols are: `http`, `https`, `imaps`, `smtps`.
+    This defaults to: `http https imaps smtps`.
+
+
+EXAMPLES
+--------
+
+.. code-block:: sh
+
+    # Proxy the IPv6-only services so IPv4-only clients can access them
+    # This uses HAProxy's TCP mode for http, https, imaps and smtps
+    __haproxy_dualstack \
+        --v4proxy ipv6.chat \
+        --v4proxy matrix.ungleich.ch
+
+    # Proxy the IPv6-only HTTP(S) services so IPv4-only clients can access them
+    # Note this means that the backend IPv6-only server will only see
+    # the IPv6 address of the haproxy host managed by cdist, which can be
+    # troublesome if this information is relevant for analytics/security/...
+    # See the PROXY example below
+    __haproxy_dualstack \
+        --protocol http --protocol https \
+        --v4proxy ipv6.chat \
+        --v4proxy matrix.ungleich.ch
+
+    # Use the PROXY protocol to proxy the IPv6-only HTTP(S) services enabling
+    # IPv4-only clients to access them while maintaining the client's IP address
+    __haproxy_dualstack \
+        --protocol http --protocol https \
+        --v4proxy proxy:ipv6.chat:http=8080:https=591 \
+        --v4proxy proxy:matrix.ungleich.ch:http=8080:https=591
+    # Note however that the PROXY protocol is not compatible with regular
+    # HTTP(S) protocols, so your nginx will have to listen on different ports
+    # with the PROXY settings.
+    # Note that you will need to restrict access to the 8080 port to prevent
+    # Client IP spoofing.
+    # This can be something like:
+    # server {
+    #     # listen for regular HTTP connections
+    #     listen [::]:80 default_server;
+    #     listen 80 default_server;
+    #     # listen for PROXY HTTP connections
+    #     listen [::]:8080 proxy_protocol;
+    #     # Accept the Client's IP from the PROXY protocol
+    #     real_ip_header proxy_protocol;
+    # }
+
+
+SEE ALSO
+--------
+- https://www.haproxy.com/blog/enhanced-ssl-load-balancing-with-server-name-indication-sni-tls-extension/
+- https://www.haproxy.com/blog/haproxy/proxy-protocol/
+- https://docs.nginx.com/nginx/admin-guide/load-balancer/using-proxy-protocol/
+
+
+AUTHORS
+-------
+ungleich <foss--@--ungleich.ch>
+Evilham <cvs--@--evilham.com>
+
+
+COPYING
+-------
+Copyright \(C) 2021 ungleich glarus ag. You can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.

cdist/conf/type/__haproxy_dualstack/manifest

@@ -0,0 +1,155 @@
+#!/bin/sh -eu
+
+__package haproxy
+require="__package/haproxy" __start_on_boot haproxy
+
+tmpdir="$__object/files"
+mkdir "$tmpdir"
+configtmp="$__object/files/haproxy.cfg"
+
+os=$(cat "$__global/explorer/os")
+case $os in
+	freebsd)
+		CONFIG_FILE="/usr/local/etc/haproxy.conf"
+		cat <<EOF > "$configtmp"
+global
+	maxconn	4000
+	user	nobody
+	group	nogroup
+	daemon
+
+EOF
+
+		;;
+	*)
+		CONFIG_FILE="/etc/haproxy/haproxy.cfg"
+		cat <<EOF > "$configtmp"
+global
+	log	[::1] local2
+	chroot	/var/lib/haproxy
+	pidfile	/var/run/haproxy.pid
+	maxconn	4000
+	user	haproxy
+	group	haproxy
+	daemon
+
+	# turn on stats unix socket
+	stats socket	/var/lib/haproxy/stats
+
+EOF
+		;;
+esac
+
+cat <<EOF >> "$configtmp"
+defaults
+	retries	3
+	log	global
+	timeout http-request	10s
+	timeout queue		1m
+	timeout connect		10s
+	timeout client		1m
+	timeout server		1m
+	timeout http-keep-alive	10s
+	timeout check		10s
+EOF
+
+dig_cmd="$(command -v dig || true)"
+get_ip() {
+	# Usage: get_ip (ipv4|ipv6) NAME
+	# uses "dig" if available, else fallback to "host"
+	case $1 in
+		ipv4)
+			if [ -n "${dig_cmd}" ]; then
+				${dig_cmd} +short A "$2"
+			else
+				host -t A "$2" | cut -d ' ' -f 4 | grep -v 'found:'
+			fi
+			;;
+		ipv6)
+			if [ -n "${dig_cmd}" ]; then
+				${dig_cmd} +short AAAA "$2"
+			else
+				host -t AAAA "$2" | cut -d ' ' -f 5 | grep -v 'NXDOMAIN'
+			fi
+			;;
+	esac
+}
+
+PROTOCOLS="$(cat "$__object/parameter/protocol")"
+
+for proxy in v4proxy v6proxy; do
+	param=$__object/parameter/$proxy
+	# no backend? skip generating code
+	if [ ! -f "$param" ]; then
+		continue
+	fi
+
+	# turn backend name into bind parameter: v4backend -> ipv4@
+	bind=$(echo $proxy | sed -e 's/^/ip/' -e 's/proxy//')
+
+	case $bind in
+		ipv4)
+			backendproto=ipv6
+			;;
+		ipv6)
+			backendproto=ipv4
+			;;
+	esac
+
+	for proto in ${PROTOCOLS}; do
+		# Add protocol "header"
+		printf "\n# %s %s \n" "${bind}" "${proto}" >> "$configtmp"
+
+		sed -e "s/BIND/$bind/" \
+			-e "s/\(frontend[[:space:]].*\)/\1$bind/" \
+			-e "s/\(backend[[:space:]].*\)/\\1$bind/" \
+			"$__type/files/$proto" >> "$configtmp"
+
+		while read -r hostdefinition; do
+			if echo "$hostdefinition" | grep -qE '^proxy:'; then
+				# Proxy protocol was requested
+				host="$(echo "$hostdefinition" | sed -E 's/^proxy:([^:]+).*$/\1/')"
+				send_proxy=" send-proxy"
+			else
+				# Just use tcp proxy mode
+				host="$hostdefinition"
+				send_proxy=""
+			fi
+			if echo "$hostdefinition" | grep -qE ":${proto}="; then
+				# Use custom port definition if requested
+				port="$(echo "$hostdefinition" | sed -E "s/^(.*:)?${proto}=([0-9]+).*$/:\2/")"
+			else
+				# Else use the default
+				port=""
+			fi
+			servername=$host
+
+			res=$(get_ip "$bind" "$servername")
+
+			if [ -z "$res" ]; then
+				echo "$servername does not resolve - aborting config" >&2
+				exit 1
+			fi
+
+			# Treat protocols without TLS+SNI specially
+			if [ "$proto" = http ]; then
+				echo "	use-server $servername if { hdr(host) -i $host }" >> "$configtmp"
+			else
+				echo "	use-server $servername if { req_ssl_sni -i $host }" >> "$configtmp"
+			fi
+
+			# Create the "server" itself.
+			# Note that port and send_proxy will be empty unless
+			# they were requested by the type user
+			echo "	server $servername ${backendproto}@${host}${port}${send_proxy}" >> "$configtmp"
+
+		done < "$param"
+	done
+done
+
+# Create config file
+require="__package/haproxy" __file ${CONFIG_FILE} --source "$configtmp" --mode 0644
+
+require="__file${CONFIG_FILE}" __check_messages "haproxy_reload" \
+	--pattern "^__file${CONFIG_FILE}" \
+	--execute "service haproxy reload || service haproxy restart"

cdist/conf/type/__haproxy_dualstack/parameter/default/protocol

@@ -0,0 +1 @@
+http https imaps smtps

cdist/conf/type/__haproxy_dualstack/parameter/optional_multiple

@@ -0,0 +1,3 @@
+protocol
+v4proxy
+v6proxy

cdist/conf/type/__letsencrypt_cert/manifest

@@ -41,7 +41,7 @@ if [ -z "${certbot_fullpath}" ]; then
 					require="__apt_source/stretch-backports" __package_apt certbot \
 						--target-release stretch-backports
 				;;
-				10*)
+				10*|11*)
 					__package_apt certbot
 				;;
 
@@ -85,7 +85,7 @@ if [ -z "${certbot_fullpath}" ]; then
 			esac
 		;;
 		freebsd)
-			__package py37-certbot
+			__package py39-certbot
 			certbot_fullpath="/usr/local/bin/certbot"
 		;;
 		ubuntu)

cdist/conf/type/__package_apt/gencode-remote

@@ -81,12 +81,24 @@ aptget="DEBIAN_FRONTEND=noninteractive apt-get --quiet --yes -o Dpkg::Options::=
 
 case "$state_should" in
     present)
+        # There are special arguments to apt(8) to prevent aborts if apt woudn't been
+        # updated after the 19th April 2021 till the bullseye release. The additional
+        # arguments acknoledge the happend suite change (the apt(8) update does the
+        # same by itself).
+        #
+        # Using '-o $config' instead of the --allow-releaseinfo-change-* parameter
+        # allows backward compatablility to pre-buster Debian versions.
+        #
+        # See more: ticket #861
+        # https://code.ungleich.ch/ungleich-public/cdist/-/issues/861
+        apt_opts="-o Acquire::AllowReleaseInfoChange::Suite=true -o Acquire::AllowReleaseInfoChange::Version=true"
+
         # following is bit ugly, but important hack.
         # due to how cdist config run works, there isn't
         # currently better way to do it :(
         cat << EOF
 if [ ! -f /var/cache/apt/pkgcache.bin ] || [ "\$( stat --format %Y /var/cache/apt/pkgcache.bin )" -lt "\$( date +%s -d '-1 day' )" ]
-then echo apt-get update > /dev/null 2>&1 || true
+then echo apt-get $apt_opts update > /dev/null 2>&1 || true
 fi
 EOF
         if [ -n "$version" ]; then

cdist/conf/type/__package_luarocks/manifest

@@ -19,5 +19,5 @@
 # along with cdist. If not, see <http://www.gnu.org/licenses/>.
 #
 
-__package luarocks --state installed
-__package make --state installed
+__package luarocks --state present
+__package make --state present

cdist/conf/type/__package_pkg_freebsd/gencode-remote

@@ -37,6 +37,7 @@ assert ()                 #  If condition false,
 	then
 		echo "Assertion failed:  \"$1\""
 		# shellcheck disable=SC2039
+		# shellcheck disable=SC3044
 		echo "File \"$0\", line $lineno, called by $(caller 0)"
 		exit $E_ASSERT_FAILED
 	fi

cdist/conf/type/__package_update_index/gencode-remote

@@ -41,7 +41,19 @@ fi
 case "$type" in
     yum) ;;
     apt)
-        echo "apt-get --quiet update"
+        # There are special arguments to apt(8) to prevent aborts if apt woudn't been
+        # updated after the 19th April 2021 till the bullseye release. The additional
+        # arguments acknoledge the happend suite change (the apt(8) update does the
+        # same by itself).
+        #
+        # Using '-o $config' instead of the --allow-releaseinfo-change-* parameter
+        # allows backward compatablility to pre-buster Debian versions.
+        #
+        # See more: ticket #861
+        # https://code.ungleich.ch/ungleich-public/cdist/-/issues/861
+        apt_opts="-o Acquire::AllowReleaseInfoChange::Suite=true -o Acquire::AllowReleaseInfoChange::Version=true"
+
+        echo "apt-get --quiet $apt_opts update"
         echo "apt-cache updated (age was: $currage)" >> "$__messages_out"
         ;;
     pacman)

cdist/conf/type/__package_upgrade_all/gencode-remote

@@ -28,6 +28,10 @@ apt_clean="$__object/parameter/apt-clean"
 
 apt_dist_upgrade="$__object/parameter/apt-dist-upgrade"
 
+if [ -f "$__object/parameter/apt-with-new-pkgs" ]; then
+	apt_with_new_pkgs="--with-new-pkgs"
+fi
+
 if [ -f "$type" ]; then
     type="$(cat "$type")"
 else
@@ -54,7 +58,7 @@ case "$type" in
     apt)
         if [ -f "$apt_dist_upgrade" ]
         then echo "$aptget dist-upgrade"
-        else echo "$aptget upgrade"
+        else echo "$aptget $apt_with_new_pkgs upgrade"
         fi
 
         if [ -f "$apt_clean" ]

cdist/conf/type/__package_upgrade_all/man.rst

@@ -33,6 +33,14 @@ BOOLEAN PARAMETERS
 apt-dist-upgrade
     Do dist-upgrade instead of upgrade.
 
+apt-with-new-pkg
+    Allow installing new packages when used in conjunction with
+    upgrade. This is useful if the update of an installed package
+    requires new dependencies to be installed. Instead of holding the
+    package back upgrade will upgrade the package and install the new
+    dependencies. Note that upgrade with this option will never remove
+    packages, only allow adding new ones.
+
 apt-clean
     Clean out the local repository of retrieved package files.
 

cdist/conf/type/__package_upgrade_all/parameter/boolean

@@ -1,2 +1,3 @@
 apt-clean
 apt-dist-upgrade
+apt-with-new-pkgs

cdist/conf/type/__rsync/gencode-local

@@ -1,39 +1,104 @@
 #!/bin/sh -e
-#
-# 2015 Dominique Roux (dominique.roux4 at gmail.com)
-#
-# This file is part of cdist.
-#
-# cdist is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# cdist is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with cdist. If not, see <http://www.gnu.org/licenses/>.
-#
 
-source=$(cat "$__object/parameter/source")
-remote_user=$(cat "$__object/parameter/remote-user")
+if ! command -v rsync > /dev/null
+then
+    echo 'rsync is missing in local machine' >&2
+    exit 1
+fi
 
-if [ -f "$__object/parameter/destination" ]; then
-    destination=$(cat "$__object/parameter/destination")
+src="$( cat "$__object/parameter/source" )"
+
+if [ ! -e "$src" ]
+then
+    echo "$src not found" >&2
+    exit 1
+fi
+
+if [ -f "$__object/parameter/destination" ]
+then
+    dst="$( cat "$__object/parameter/destination" )"
 else
-    destination="/$__object_id"
+    dst="/$__object_id"
 fi
 
-set --
-if [ -f "$__object/parameter/rsync-opts" ]; then
-    while read -r opts; do
-        set -- "$@" "--$opts"
-    done < "$__object/parameter/rsync-opts"
+# if source is directory, then make sure that
+# source and destination are ending with slash,
+# because this is what you almost always want when
+# rsyncing two directories.
+
+if [ -d "$src" ]
+then
+    if ! echo "$src" | grep -Eq '/$'
+    then
+        src="$src/"
+    fi
+
+    if ! echo "$dst" | grep -Eq '/$'
+    then
+        dst="$dst/"
+    fi
 fi
 
-echo rsync -a \
-    --no-owner --no-group \
-    -q "$@" "${source}/" "${remote_user}@${__target_host}:${destination}"
+remote_user="$( cat "$__object/parameter/remote-user" )"
+
+options="$( cat "$__object/parameter/options" )"
+
+if [ -f "$__object/parameter/option" ]
+then
+    while read -r l
+    do
+        # there's a limitation in argparse: value can't begin with '-'.
+        # to workaround this, let's prefix opts with '\' in manifest and remove here.
+        # read more about argparse issue: https://bugs.python.org/issue9334
+
+        options="$options $( echo "$l" | sed 's/\\//g' )"
+    done \
+        < "$__object/parameter/option"
+fi
+
+if [ -f "$__object/parameter/owner" ] || [ -f "$__object/parameter/group" ]
+then
+    options="$options --chown="
+
+    if [ -f "$__object/parameter/owner" ]
+    then
+        owner="$( cat "$__object/parameter/owner" )"
+        options="$options$owner"
+    fi
+
+    if [ -f "$__object/parameter/group" ]
+    then
+        group="$( cat "$__object/parameter/group" )"
+        options="$options:$group"
+    fi
+fi
+
+if [ -f "$__object/parameter/mode" ]
+then
+    mode="$( cat "$__object/parameter/mode" )"
+    options="$options --chmod=$mode"
+fi
+
+# IMPORTANT
+#
+# 1. we first dry-run rsync with change summary to find out
+#    if there are any changes and code generation is needed.
+# 2. normally, to get current state or target host, we run
+#    such operations in type explorers, but that's not
+#    possible due to how rsync works.
+# 3. redirecting output of dry-run to stderr to ease debugging.
+# 4. to understand how that cryptic regex works, please
+#    open rsync manpage and read about --itemize-changes.
+
+export RSYNC_RSH="$__remote_exec"
+
+# shellcheck disable=SC2086
+if ! rsync --dry-run --itemize-changes $options "$src" "$remote_user@$__target_host:$dst" \
+    | grep -E '^(<|>|c|h|\.|\*)[fdL][cstTpogunbax\.\+\?]+\s' >&2
+then
+    exit 0
+fi
+
+echo "export RSYNC_RSH='$__remote_exec'"
+
+echo "rsync $options $src $remote_user@$__target_host:$dst"

cdist/conf/type/__rsync/man.rst

@@ -3,112 +3,73 @@ cdist-type__rsync(7)
 
 NAME
 ----
-cdist-type__rsync - Mirror directories using rsync
+cdist-type__rsync - Mirror directories using ``rsync``
 
 
 DESCRIPTION
 -----------
-WARNING: This type is of BETA quality:
-
-- it has not been tested widely
-- interfaces *may* change
-- if there is a better approach to solve the problem -> the type may even vanish
-
-If you are fine with these constraints, please read on.
-
-
-This cdist type allows you to mirror local directories to the
-target host using rsync. Rsync will be installed in the manifest of the type.
-If group or owner are giveng, a recursive chown will be executed on the 
-target host.
-
-A slash will be appended to the source directory so that only the contents
-of the directory are taken and not the directory name itself.
+The purpose of this type is to bring power of ``rsync`` into ``cdist``.
 
 
 REQUIRED PARAMETERS
 -------------------
 source
-    Where to take files from
+   Source directory in local machine.
+   If source is directory, slash (``/``) will be added to source and destination paths.
 
 
 OPTIONAL PARAMETERS
 -------------------
-group
-   Group to chgrp to.
+destination
+   Destination directory. Defaults to ``$__object_id``.
 
 owner
-   User to chown to.
+   Will be passed to ``rsync`` as ``--chown=OWNER``.
+   Read ``rsync(1)`` for more details.
 
-destination
-    Use this as the base destination instead of the object id
+group
+   Will be passed to ``rsync`` as ``--chown=:GROUP``.
+   Read ``rsync(1)`` for more details.
+
+mode
+   Will be passed to ``rsync`` as ``--chmod=MODE``.
+   Read ``rsync(1)`` for more details.
+
+options
+   Defaults to ``--recursive --links --perms --times``.
+   Due to `bug in Python's argparse<https://bugs.python.org/issue9334>`_, value must be prefixed with ``\``.
 
 remote-user
-    Use this user instead of the default "root" for rsync operations.
+   Defaults to ``root``.
 
 
 OPTIONAL MULTIPLE PARAMETERS
 ----------------------------
-rsync-opts
-    Use this option to give rsync options with.
-    See rsync(1) for available options.
-    Only "--" options are supported.
-    Write the options without the beginning "--"
-    Can be specified multiple times.
-
-
-MESSAGES
---------
-NONE
+option
+   Pass additional options to ``rsync``.
+   See ``rsync(1)`` for all possible options.
+   Due to `bug in Python's argparse<https://bugs.python.org/issue9334>`_, value must be prefixed with ``\``.
 
 
 EXAMPLES
 --------
-
 .. code-block:: sh
 
-    # You can use any source directory
-    __rsync /tmp/testdir \
-        --source /etc
-
-    # Use source from type
-    __rsync /etc \
-        --source "$__type/files/package"
-
-    # Allow multiple __rsync objects to write to the same dir
-    __rsync mystuff \
-        --destination /usr/local/bin \
-        --source "$__type/files/package"
-
-    __rsync otherstuff \
-        --destination /usr/local/bin \
-        --source "$__type/files/package2"
-
-    # Use rsync option --exclude
-    __rsync /tmp/testdir \
-        --source /etc \
-        --rsync-opts exclude=sshd_conf
-
-    # Use rsync with multiple options --exclude --dry-run
-    __rsync /tmp/testing \
-        --source /home/tester \
-        --rsync-opts exclude=id_rsa \
-        --rsync-opts dry-run
-
-
-SEE ALSO
---------
-:strong:`rsync`\ (1)
+    __rsync /var/www/example.com \
+        --owner root \
+        --group www-data \
+        --mode 'D750,F640' \
+        --source "$__files/example.com/www"
 
 
 AUTHORS
 -------
-Nico Schottelius <nico-cdist--@--schottelius.org>
+Ander Punnar <ander-at-kvlt-dot-ee>
 
 
 COPYING
 -------
-Copyright \(C) 2015 Nico Schottelius. You can redistribute it
-and/or modify it under the terms of the GNU General Public License as
-published by the Free Software Foundation, either version 3 of the
-License, or (at your option) any later version.
+Copyright \(C) 2021 Ander Punnar. You can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the Free
+Software Foundation, either version 3 of the License, or (at your option)
+any later version.

cdist/conf/type/__rsync/manifest

@@ -1,21 +1,3 @@
 #!/bin/sh -e
-#
-# 2015 Dominique Roux (dominique.roux4 at gmail.com)
-#
-# This file is part of cdist.
-#
-# cdist is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# cdist is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with cdist. If not, see <http://www.gnu.org/licenses/>.
-#
 
 __package rsync

cdist/conf/type/__rsync/parameter/default/options

@@ -0,0 +1 @@
+--recursive --links --perms --times

cdist/conf/type/__rsync/parameter/optional

@@ -1,4 +1,6 @@
 destination
-owner
 group
+mode
+options
+owner
 remote-user

cdist/conf/type/__rsync/parameter/optional_multiple

@@ -1 +1 @@
-rsync-opts
+option

cdist/conf/type/__sed/explorer/file

@@ -0,0 +1,16 @@
+#!/bin/sh -e
+
+if [ -f "$__object/parameter/file" ]
+then
+    file="$( cat "$__object/parameter/file" )"
+else
+    file="/$__object_id"
+fi
+
+if [ ! -e "$file" ]
+then
+    echo "$file does not exist" >&2
+    exit 1
+fi
+
+cat "$file"

cdist/conf/type/__sed/gencode-remote

@@ -0,0 +1,58 @@
+#!/bin/sh -e
+
+if [ -f "$__object/parameter/file" ]
+then
+    file="$( cat "$__object/parameter/file" )"
+else
+    file="/$__object_id"
+fi
+
+script="$( cat "$__object/parameter/script" )"
+
+if [ "$script" = '-' ]
+then
+    script="$( cat "$__object/stdin" )"
+fi
+
+# since stdin is not available in explorer, we pull file from target with explorer
+
+file_from_target="$__object/explorer/file"
+
+sed_cmd='sed'
+
+if [ -f "$__object/parameter/regexp-extended" ]
+then
+    sed_cmd="$sed_cmd -E"
+fi
+
+# do sed dry run, diff result and if no change, then there's nothing to do
+# also redirect diff's output to stderr for debugging purposes
+
+if echo "$script" | "$sed_cmd" -f - "$file_from_target" | diff -u "$file_from_target" - >&2
+then
+    exit 0
+fi
+
+# we can't use -i, because it's not posix, so we fly with tempfile and cp
+# and we use cp because we want to preserve destination file's attributes
+
+# shellcheck disable=SC2016
+echo 'tmp="$__object/tempfile"'
+
+echo "$sed_cmd -f - '$file' > \"\$tmp\" << EOF"
+
+echo "$script"
+
+echo 'EOF'
+
+echo "cp \"\$tmp\" '$file'"
+
+# shellcheck disable=SC2016
+echo 'rm -f "$tmp"'
+
+echo 'change' >> "$__messages_out"
+
+if [ -f "$__object/parameter/onchange" ]
+then
+    cat "$__object/parameter/onchange"
+fi

cdist/conf/type/__sed/man.rst

@@ -0,0 +1,57 @@
+cdist-type__sed(7)
+==================
+
+NAME
+----
+cdist-type__sed - Transform text files with ``sed``
+
+
+DESCRIPTION
+-----------
+Transform text files with ``sed``.
+
+
+REQUIRED MULTIPLE PARAMETERS
+----------------------------
+script
+   ``sed`` script.
+   If ``-`` then the script is read from ``stdin``.
+
+
+OPTIONAL PARAMETERS
+-------------------
+file
+   Path to the file. Defaults to ``$__object_id``.
+
+onchange
+   Execute this command if ``sed`` changes file.
+
+
+BOOLEAN PARAMETERS
+------------------
+regexp-extended
+   Use extended regular expressions in the script.
+   Might not be supported with every ``sed`` version.
+
+
+EXAMPLES
+--------
+
+.. code-block:: sh
+
+   __sed /tmp/foobar --script 's/foo/bar/'
+
+   echo 's/foo/bar/' | __sed foobar --file /tmp/foobar --script -
+
+
+AUTHORS
+-------
+Ander Punnar <ander-at-kvlt-dot-ee>
+
+
+COPYING
+-------
+Copyright \(C) 2021 Ander Punnar. You can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the Free
+Software Foundation, either version 3 of the License, or (at your option)
+any later version.

cdist/conf/type/__sed/parameter/boolean

@@ -0,0 +1 @@
+regexp-extended

cdist/conf/type/__sed/parameter/optional

@@ -0,0 +1,2 @@
+file
+onchange

cdist/conf/type/__sed/parameter/required_multiple

@@ -0,0 +1 @@
+script

cdist/conf/type/__snakeoil_cert/explorer/ssl-cert-group

@@ -0,0 +1,8 @@
+#!/bin/sh -e
+
+if grep -Eq '^ssl-cert:' /etc/group
+then
+    echo 'present'
+else
+    echo 'absent'
+fi

cdist/conf/type/__snakeoil_cert/explorer/state

@@ -0,0 +1,24 @@
+#!/bin/sh -e
+
+key_path="$( cat "$__object/parameter/key-path" )"
+
+if echo "$key_path" | grep -Fq '%s'
+then
+    # shellcheck disable=SC2059
+    key_path="$( printf "$key_path" "$__object_id" )"
+fi
+
+cert_path="$( cat "$__object/parameter/cert-path" )"
+
+if echo "$cert_path" | grep -Fq '%s'
+then
+    # shellcheck disable=SC2059
+    cert_path="$( printf "$cert_path" "$__object_id" )"
+fi
+
+if [ ! -f "$key_path" ] || [ ! -f "$cert_path" ]
+then
+    echo 'absent'
+else
+    echo 'present'
+fi

cdist/conf/type/__snakeoil_cert/gencode-remote

@@ -0,0 +1,73 @@
+#!/bin/sh -e
+
+state="$( cat "$__object/explorer/state" )"
+
+if [ "$state" = 'present' ]
+then
+    exit 0
+fi
+
+if [ -f "$__object/parameter/common-name" ]
+then
+    common_name="$( cat "$__object/parameter/common-name" )"
+else
+    common_name="$__object_id"
+fi
+
+key_path="$( cat "$__object/parameter/key-path" )"
+
+if echo "$key_path" | grep -Fq '%s'
+then
+    # shellcheck disable=SC2059
+    key_path="$( printf "$key_path" "$__object_id" )"
+fi
+
+cert_path="$( cat "$__object/parameter/cert-path" )"
+
+if echo "$cert_path" | grep -Fq '%s'
+then
+    # shellcheck disable=SC2059
+    cert_path="$( printf "$cert_path" "$__object_id" )"
+fi
+
+key_type="$( cat "$__object/parameter/key-type" )"
+
+key_type_arg="$( echo "$key_type" | cut -d : -f 2 )"
+
+case "$key_type" in
+    rsa:*)
+        echo "openssl genrsa -out '$key_path' $key_type_arg"
+    ;;
+    ec:*)
+        echo "openssl ecparam -name $key_type_arg -genkey -noout -out '$key_path'"
+    ;;
+esac
+
+# shellcheck disable=SC2016
+echo 'csr_path="$( mktemp )"'
+
+echo "openssl req -new -subj '/CN=$common_name' -key '$key_path' -out \"\$csr_path\""
+
+echo "openssl x509 -req -sha256 -days 3650 -in \"\$csr_path\" -signkey '$key_path' -out '$cert_path'"
+
+# shellcheck disable=SC2016
+echo 'rm -f "$csr_path"'
+
+if [ "$( cat "$__object/explorer/ssl-cert-group" )" = 'present' ]
+then
+    key_group='ssl-cert'
+else
+    key_group='root'
+fi
+
+echo "chmod 640 '$key_path'"
+
+echo "chown root '$key_path'"
+
+echo "chgrp $key_group '$key_path'"
+
+echo "chmod 644 '$cert_path'"
+
+echo "chown root '$cert_path'"
+
+echo "chgrp root '$cert_path'"

cdist/conf/type/__snakeoil_cert/man.rst

@@ -0,0 +1,61 @@
+cdist-type__snakeoil_cert(7)
+============================
+
+NAME
+----
+cdist-type__snakeoil_cert - Generate self-signed certificate
+
+
+DESCRIPTION
+-----------
+The purpose of this type is to generate **self-signed** certificate and private key
+for **testing purposes**. Certificate will expire in 3650 days.
+
+Certificate's and key's access bits will be ``644`` and ``640`` respectively.
+If target system has ``ssl-cert`` group, then it will be used as key's group.
+Use ``require='__snakeoil_cert/...' __file ...`` to override.
+
+
+OPTIONAL PARAMETERS
+-------------------
+common-name
+   Defaults to ``$__object_id``.
+
+key-path
+   ``%s`` in path will be replaced with ``$__object_id``.
+   Defaults to ``/etc/ssl/private/%s.pem``.
+
+key-type
+   Possible values are ``rsa:$bits`` and ``ec:$name``.
+   For possible EC names see ``openssl ecparam -list_curves``.
+   Defaults to ``rsa:2048``.
+
+cert-path
+   ``%s`` in path will be replaced with ``$__object_id``.
+   Defaults to ``/etc/ssl/certs/%s.pem``.
+
+
+EXAMPLES
+--------
+.. code-block:: sh
+
+	__snakeoil_cert localhost-rsa \
+	    --common-name localhost \
+	    --key-type rsa:4096
+
+	__snakeoil_cert localhost-ec \
+	    --common-name localhost \
+	    --key-type ec:prime256v1
+
+
+AUTHORS
+-------
+Ander Punnar <ander-at-kvlt-dot-ee>
+
+
+COPYING
+-------
+Copyright \(C) 2021 Ander Punnar. You can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the Free
+Software Foundation, either version 3 of the License, or (at your option)
+any later version.

cdist/conf/type/__snakeoil_cert/parameter/default/cert-path

@@ -0,0 +1 @@
+/etc/ssl/certs/%s.pem

cdist/conf/type/__snakeoil_cert/parameter/default/key-path

@@ -0,0 +1 @@
+/etc/ssl/private/%s.pem

cdist/conf/type/__snakeoil_cert/parameter/default/key-type

@@ -0,0 +1 @@
+rsa:2048

cdist/conf/type/__snakeoil_cert/parameter/optional

@@ -0,0 +1,4 @@
+common-name
+key-path
+key-type
+cert-path

cdist/conf/type/__ssh_authorized_key/gencode-remote

@@ -40,6 +40,7 @@ if [ -f "$file" ]; then
    grep -v -F -x '$line' '$file' >\$tmpfile
 fi
 cat "\$tmpfile" >"$file"
+rm -f "\$tmpfile"
 DONE
 }
 

cdist/conf/type/__ssh_authorized_keys/explorer/keys

@@ -1,6 +1,7 @@
 #!/bin/sh -e
 
 # shellcheck disable=SC1090
+# shellcheck disable=SC1091
 file="$( . "$__type_explorer/file" )"
 
 if [ -f "$file" ]

cdist/conf/type/__timezone/gencode-remote

@@ -34,3 +34,12 @@ case "$os" in
       echo "echo \"$timezone_should\" > /etc/timezone"
    ;;
 esac
+
+case "$os" in
+    openwrt)
+        cat <<EOF
+			uci set system.@system[0].timezone="$timezone_should"
+			uci commit
+EOF
+   ;;
+esac

cdist/conf/type/__timezone/manifest

@@ -53,7 +53,10 @@ case "$os" in
                 --file /etc/sysconfig/clock \
                 --delimiter '=' \
                 --value "\"$timezone\""
-    ;;
+        ;;
+    openwrt)
+        : # Uses gencode-remote
+        ;;
     *)
         echo "Your operating system ($os) is currently not supported by this type (${__type##*/})." >&2
         echo "Please contribute an implementation for it if you can." >&2

cdist/conf/type/__update_alternatives/explorer/alternatives

@@ -1,4 +1,4 @@
 #!/bin/sh -e
 
-update-alternatives --display "$__object_id" 2>/dev/null \
-    | awk -F ' - ' '/priority [0-9]+$/ { print $1 }'
+LC_ALL=C update-alternatives --display "${__object_id:?}" 2>/dev/null \
+| awk -F ' - ' '/priority [0-9]+$/ { print $1 }'

cdist/conf/type/__update_alternatives/explorer/link

@@ -18,12 +18,12 @@ for altdir in \
     /var/lib/dpkg/alternatives \
     /var/lib/alternatives
 do
-    if [ ! -f "$altdir/$__object_id" ]
+    if [ ! -f "$altdir/${__object_id:?}" ]
     then
         continue
     fi
 
-    link="$( awk 'NR==2' "$altdir/$__object_id" )"
+    link="$( awk 'NR==2' "$altdir/${__object_id:?}" )"
 
     if [ -n "$link" ]
     then
@@ -31,9 +31,12 @@ do
     fi
 done
 
-if [ -z "$link" ]
+if [ -z "$link" ] && [ -z "${__cdist_dry_run+dry run}" ]
 then
-    echo "unable to get link for $__object_id" >&2
+    # NOTE: ignore error for dry-runs because a package providing the link
+    #       might be managed by another cdist object (which wasn't executed,
+    #       because dry run…).
+    echo "unable to get link for ${__object_id:?}" >&2
     exit 1
 fi
 

cdist/conf/type/__update_alternatives/explorer/path_is

@@ -1,11 +1,15 @@
 #!/bin/sh -e
 
-path_is="$( update-alternatives --display "$__object_id" 2>/dev/null \
-    | awk '/link currently points to/ {print $5}' )"
+path_is=$(
+    LC_ALL=C update-alternatives --display "${__object_id?}" 2>/dev/null \
+    | awk '/link currently points to/ { print $5 }')
 
-if [ -z "$path_is" ]
+if [ -z "$path_is" ] && [ -z "${__cdist_dry_run+dry run}" ]
 then
-    echo "unable to get current path for $__object_id" >&2
+    # NOTE: ignore error for dry-runs because a package providing the
+    #       alternative might be managed by another cdist object (which
+    #       wasn't executed, because dry run…).
+    echo "unable to get current path for ${__object_id:?}" >&2
     exit 1
 fi
 

cdist/conf/type/__update_alternatives/explorer/path_should_state

@@ -1,6 +1,6 @@
 #!/bin/sh -e
 
-if [ -f "$( cat "$__object/parameter/path" )" ]
+if [ -f "$( cat "${__object:?}/parameter/path" )" ]
 then
     echo 'present'
 else

cdist/conf/type/__update_alternatives/gencode-remote

@@ -18,37 +18,39 @@
 # You should have received a copy of the GNU General Public License
 # along with cdist. If not, see <http://www.gnu.org/licenses/>.
 
-path_is="$( cat "$__object/explorer/path_is" )"
+path_is="$( cat "${__object:?}/explorer/path_is" )"
 
-path_should="$( cat "$__object/parameter/path" )"
+path_should="$( cat "${__object:?}/parameter/path" )"
 
 if [ "$path_is" = "$path_should" ]
 then
     exit 0
 fi
 
-if [ "$( cat "$__object/explorer/path_should_state" )" = 'absent' ] && [ -z "$__cdist_dry_run" ]
+if [ "$( cat "${__object:?}/explorer/path_should_state" )" = 'absent' ] \
+    && [ -z "${__cdist_dry_run+dry run}" ]
 then
     echo "$path_should does not exist in target" >&2
     exit 1
 fi
 
-name="$__object_id"
+name=${__object_id:?}
 
-alternatives="$( cat "$__object/explorer/alternatives" )"
-
-if ! echo "$alternatives" | grep -Fxq "$path_should"
+if ! grep -Fxq "$path_should" "${__object:?}/explorer/alternatives"
 then
-    if [ ! -f "$__object/parameter/install" ]
+    if [ -f "${__object:?}/parameter/install" ]
     then
+        link="$( cat "${__object:?}/explorer/link" )"
+        echo "update-alternatives --install '$link' '$name' '$path_should' 1000"
+    elif [ -z "${__cdist_dry_run+dry run}" ]
+    then
+        # NOTE: ignore error for dry-runs because a package providing the link
+        #       to be installed might be managed by another cdist object (which
+        #       wasn't executed, because dry run…).
         echo "$path_should is not in $name alternatives." >&2
         echo 'Please install missing packages or use --install to add path to alternatives.' >&2
         exit 1
     fi
-
-    link="$( cat "$__object/explorer/link" )"
-
-    echo "update-alternatives --install '$link' '$name' '$path_should' 1000"
 fi
 
 echo "update-alternatives --set '$name' '$path_should'"

cdist/conf/type/__user_groups/explorer/group

@@ -20,4 +20,4 @@
 
 user="$(cat "$__object/parameter/user" 2>/dev/null || echo "$__object_id")"
 
-(id -G -n "$user" | tr ' ' '\n' | sort) 2>/dev/null || true
+(id -G -n "$user" | tr ' ' '\n') 2>/dev/null || true